[Clascomment] OPT-IN: Measurement of Target and Double-spin Asymmetries for ep->epi+(n) Reaction in the Nucleon Resonance Region at Low Q2

[Volker Burkert]

This is a very well written paper with a lot of physics content. 

Here are a few comments: 
General:
1) Please add all data points to the CLAS physics data base before submission to the arXiv. 
2) All figures with color need to include  Fig.xxx (color online). Currently only Fig.1 to Fig.4 have that included.
3) On several places  (abstract, headline in line 606, ...) the process is described as "semi-inclusive".
 Since you write the process as "ep->epi+(n)", i.e. we know the final state, it should really be "exclusive" 
("semi-inclusive" would be ep->epi+X).  

Specific:
line 23: add more recent review reference: I.G. Aznauryan, V.D. Burkert, Prog.Part.Nucl.Phys. 67 (2012), 1-54
line 227: "spectrometer" is misspelled
line 526: if may be better to write "..and this effect is quantified (or described) as dilution factor." 
line 810: "logarithmically" is misspelled. 

That's all,
Volker